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Controlled switching method supporting network configurated with Femto base station

A network deployment, femto-gw technology, applied in the field of controlled handover, can solve the problem that CSGFemto base station cannot be used as a handover candidate target base station, etc.

Inactive Publication Date: 2011-03-30
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] When Femto base stations are deployed in a WiMAX network, there are CSG types, OSG types, and mixed types of Femto; especially CSG Femto, only the terminal users in the terminal user identification list allowed to access them can access, so the original The handover process under the macro station must be modified accordingly before it can be used; for example, the information related to the terminal and Femto must be transferred to the target base station for handover, and the CSGFemto base station that does not allow terminal access cannot be used as a candidate target base station for handover, etc.

Method used

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  • Controlled switching method supporting network configurated with Femto base station
  • Controlled switching method supporting network configurated with Femto base station
  • Controlled switching method supporting network configurated with Femto base station

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0140] This example is figure 1 As shown, it is used to illustrate the flow chart of the handover preparation stage, including the following situations: the MS triggers or the serving base station triggers the handover process, and the anchor authenticator or the serving base station judges whether the terminal is allowed to access the CSG Femto.

[0141] In step 1, the MS (terminal) initiates a handover request message to the current serving base station (Macro-BS (Serving)). The message includes the selection of the handover candidate target base station by the MS;

[0142] (Step 1 is the handover process triggered by the terminal; if it is a handover process triggered by the serving base station, start directly from step 2)

[0143] Step 2: The serving base station interacts with the anchor authenticator to obtain the AKContext of the target base station (if the handover is triggered by the MS, the target base station is the target base station in the handover request mess...

Embodiment 2

[0156] This example is figure 2 As shown, it is used to illustrate the flow chart of the handover preparation stage, including the following situations: the MS triggers or the serving base station triggers the handover process, and the anchor paging controller or the target base station judges whether the terminal is allowed to access the CSG Femto.

[0157] In step 1, the MS sends a handover request message to the current serving base station. The message includes the selection of the handover candidate target base station by the MS;

[0158] (Step 1 is the handover process triggered by the terminal; if it is a handover process triggered by the serving base station, start directly from step 2)

[0159] Step 2: The serving base station sends a handover request message HO REQ to the target base station (if it is a handover triggered by the MS, the target base station is the target base station in the handover request message sent by the MS to the serving base station, and the...

Embodiment 3

[0178] This example is image 3 Shown is a schematic diagram of the switching execution process

[0179] Step 1: The MS sends a handover instruction message to the serving base station, and the handover instruction message includes the identity of the target base station finally selected by the MS;

[0180] Step 2: The serving base station sends a handover instruction confirmation message HO-Cnf to the selected final target base station; the message contains at least one of the following information: the list of CSG Femto base stations that the terminal user is allowed to access, and the CSG ID that the terminal user is allowed to access List, handover strategy information related to Femto;

[0181] Step 3: After receiving the handover confirmation message HO-Cnf, the target base station sends the handover confirmation confirmation message HO-Ack to the serving base station;

[0182] Step 4: The target base station interacts with the anchor authenticator to obtain the AK Con...

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Abstract

The invention proposes a switching method supporting a network configurated with a Femto base station, which comprises the following steps: a service base station sends a switching request message to a candidate target base station; the candidate target base station sends a switching response massage to the service base station; and the service base station sends a switching request or switching response to a terminal after receiving the switching response massage. The invention can be used for establishing a relevant perfect Femto switching strategy so that base stations related to the Femto base station can be easily switched.

Description

technical field [0001] The invention relates to the communication field, in particular to a method for controlled switching between base stations related to Femto. Background technique [0002] Base stations in a WiMAX network can be divided into various types according to coverage, such as Macro BS, Pico, and Femto; Femto is mainly used in homes or offices, and Femto can be divided into two types , one is a private type, that is, this type of Femto (abbreviated as CSG type Femto), which can only provide services for specific terminals; the other type is a public type, that is, this type of Femto (abbreviated as OSG type) Like a macro station, it can provide services for all legal users; in addition, there is a base station with mixed characteristics, that is, the Femto allows specific terminals to access, and also allows other non-specific terminals to access, but specific terminals access and get services The priority is higher than that of non-specific users; during anal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/00H04W48/20
Inventor 宋建全骆文曲红云褚丽许玲
Owner ZTE CORP